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Conversion. Automobiles to 40 mm. anti-aircraft guns. Here, in a former automobile plant, 40 mm. anti-aircraft gun barrels…
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Conversion. Automobiles to 40 mm. anti-aircraft guns. Here, in a former automobile plant, 40 mm. anti-aircraft gun barrels are machined and made ready for front line duty. Since they must shoot fast moving objects at great distances, they must be finished to the very finest of tolerances. Chrysler Corporation, Highland Park, Detroit. Sourced from the Library of Congress.

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Conversion. Automobiles to 40 mm. anti-aircraft guns. Here, in a former automobile plant, 40 mm. anti-aircraft gun barrels are machined and made ready for front line duty. Since they must shoot fast moving objects at great distances, they must be finished to the very finest of tolerances. Chrysler Corporation, Highland Park, Detroit. Sourced from the Library of Congress.

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